Park approximately 400 m after the Refuge de l'Agnel, continuing the ascent towards Col Agnel. There is a large car park.
(S/E) Cross the Col Agnel road and take the southbound path that passes under the dry toilets.
(1) Cross the Riou Long (upper part of the Aigue Agnelle). At the Sentier déambulatoire sign, head towards Col de Chamoussière, taking the red and white markedGR®58. Continue along this path to reach Col de Chamoussière.
(2). Turn left onto the ridge to reach Pic de Caramantran. Note: several cairned trails make it easy to reach the summit, marked by a cairn and a small stone inscribed with Pic de Caramantran 3025 m.
(3) Begin your descent by following the ridge for about 50 metres, then take the time to observe the rest of the route. Several paths branch off, but stay on the highest one and you will come to a cairn with a green flag and a plaque reading "Lollo in vetta".
(4) Here you will find the yellowPR® markings, which you can easily follow along the French-Italian border to the Col de Saint-Véran.
(5) Continue along the border towards Rocca Bianca until you see a cairned path on your right that descends towards the lakes.
(6) Leave the ridge line and take this path, following the cairns. First, pass close to Lac Blanchet Supérieur.
(7) Follow it and then continue downhill to reach Lac Blanchet Inférieur.
(8) Go around it on the left and you will soon reach the yellow-marked trail leading to Col Blanchet.
(9) Leave the access to the pass on your left and continue downhill to the right. You will then reach Lac de la Blanche and the refuge of the same name.
(10) Head towards the old refuge; a sign for Refuge de la Blanche, Alt 2499 m, indicates the direction of Col de Chamoussière.
::11: Cross the Aigue Blanche. Begin the climb through the mountain pasture. Join theGR®58shortly before the pass. Take it to the right to return to the Col de Chamoussière, which you passed on the way up.
(2) Retrace your steps to reach the large car park at Col Agnel (S/E) after the descent.